Reference no: EM132353832

"Mary is confined to a black-and-white room, is educated through black-and-white books and through lectures relayed on black-and-white television. In this way she learns everything there is to know about the physical nature of the world. She knows all the physical facts about the environment...Physicalism is not the noncontroversial thesis that the actual world is largely physical, but the challenging thesis that it is entirely physical...It seems, however, that Mary does not know all there is to know. For when she is let out of the black-and-white room or given a color television, she will learn what it is like to see something red, say. This is rightly described as learning--she will not say "ho, hum." Hence, physicalism is false."